Monel 400 is a corrosion-resistant alloy with the largest usage,
the widest range of applications, and excellent comprehensive
performance. This alloy has excellent corrosion resistance in
hydrofluoric acid and fluorine gas media, and also has excellent
corrosion resistance to hot concentrated alkaline solution. It is
also resistant to corrosion from neutral solutions, water,
seawater, atmosphere, organic compounds, etc. An important feature
of this alloy is that it generally does not produce stress
corrosion cracks and has good cutting performance.
Monel 400 is mainly used in fields such as chemistry,
petrochemicals, and ocean development. It can be used to
manufacture various heat exchange equipment, boiler feedwater
heaters, petroleum and chemical pipelines, containers, towers,
tanks, valves, pumps, reactors, shafts, etc.
Chemical Properties of Monel 400
| Ni | Cu | Al | Ti | C | Mn | Fe | S | Si |
| 63.0-70.0 | 27-33 | 2.30-3.15 | 0.35-0.85 | 0.25 max | 1.5 max | 2.0 max | 0.01 max | 0.50 max |
| Product Form | Condition | Tensile (ksi) | .2% Yield (ksi) | Elongation % | Hardness |
| Rod & Bar | Hot-Finished/Aged | 140-190 | 100-150 | 30-20 | 27-38 HRC |
| Rod & Bar | Hot Finished/Annealed | 90-110 | 40-60 | 45-25 | 75-90 HRB |
| Rod & Bar | Hot Finished/Annealed/Aged | 130-165 | 85-120 | 35-20 | 24-35 HRC |
| Rod & Bar | Cold-Drawn/Aged | 135-185 | 95-160 | 30-15 | 25-41 HRC |
| Rod & Bar | Cold-Drawn/Annealed/Aged | 130-190 | 85-120 | 30-20 | 24-35 HRC |
| Plate | ot-Finished/Aged | 140-180 | 100-135 | 30-20 | 27-37 HRC |
| Sheet | Cold-Rolled/Annealed | 90-105 | 40-65 | 45-25 | 85 HRB Max
|
1. Marine Engineering: Monel 400 wire is commonly used in the manufacturing of marine
engineering equipment such as seawater desalination units, seawater
pumps, and offshore oil pipelines, highly favored for its
resistance to seawater corrosion.
2. Chemical Industry: Due to its corrosion resistance to various chemicals, Monel 400
wire is widely employed in the chemical industry for manufacturing
chemical reactors, piping for acidic environments, and chemical
equipment.
3. Aerospace Industry: Monel 400 wire is also utilized in the aerospace sector for
fabricating components of aircraft and spacecraft, including engine
parts, structural brackets, and hydraulic systems.
4. Marine Vessels: In the marine vessel sector, Monel 400 wire finds extensive use in
the manufacturing of ship equipment and components such as hull
structures, marine valves, and pipe fittings, to withstand
corrosion from seawater and the marine environment.
5. Chemical Processing: Monel 400 wire is also commonly used in chemical processing and
fine chemical industries for manufacturing corrosion-resistant
equipment and piping systems, including chlorine processing units
and petroleum processing equipment.
